Update/send edit link

[javorosas]

Add missing documentation for createEditLink

[Copilot]

Pull Request Overview

This PR adds comprehensive documentation for the createEditLink feature in the Facturapi customer management system. It provides users with the ability to generate and send edit links to customers so they can complete their own fiscal information.

• Adds OpenAPI documentation for the sendEditLinkByEmail endpoint with complete request/response schemas and code examples
• Adds error response handling (400, 401, 500) to the existing customer delete endpoint
• Documents the createEditLink workflow in both English and Spanish customer guides with practical examples

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
website/openapi_v2.en.yaml	Adds API documentation for sendEditLinkByEmail endpoint and error responses for customer deletion
website/i18n/en/docusaurus-plugin-content-docs/current/guides/customers.mdx	Adds English documentation section for creating customers with edit links and sending edit links by email
website/docs/guides/customers.mdx	Adds Spanish documentation section for creating customers with edit links and sending edit links by email

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